Results 91 to 100 of about 1,031,105 (176)
Structural studies of the complex CCR4-NOT
Le recyclage des ARN débute par un étape de déadenylation ou la queue poly (A) est enzymatiquement clivée. La deadenylation est l’étape limitante dans le processus de dégradation des ARN.
Basquin, Jérôme
core
Building on the Ccr4‐Not architecture
In a recent issue of Nature Communications Ukleja and co-workers reported a cryo-EM 3D reconstruction of the Ccr4-Not complex from Schizosaccharomyces pombe with an immunolocalization of the different subunits.
Zoltan Villanyi +3 more
core +1 more source
Human DDX6 regulates translation and decay of inefficiently translated mRNAs
Recent findings indicate that the translation elongation rate influences mRNA stability. One of the factors that has been implicated in this link between mRNA decay and translation speed is the yeast DEAD-box helicase Dhh1p.
Ramona Weber, Chung-Te Chang
doaj +1 more source
Enhanced Intracellular Stability and Translation Efficiency of mRNA Drugs by a 2‐arm mRNA Platform
We constructed a 2‐arm mRNA, characterized by a unique topology formed through the dimerization of two mRNA 3’ tails. The 2‐arm mRNA improves 3’ tail stability and resistance to nuclease degradation, resulting in an intracellular half‐life of up to 65 h. This method substantially enhances the translation capacity of mRNA drugs.
Xucong Teng +5 more
wiley +1 more source
Implication of Ccr4-Not complex function in mRNA quality control in Saccharomyces cerevisiae
Production of messenger ribonucleoprotein particles (mRNPs) is subjected to quality control (QC). In Saccharomyces cerevisiae, the RNA exosome and its cofactors are part of the nuclear QC machinery that removes, or stalls, aberrant molecules, thereby ...
Jannie Assenholt +5 more
core +1 more source
In eukaryotic cells, cytoplasmic mRNA is characterised by a 3′ poly(A) tail. The shortening and removal of poly(A) tails (deadenylation) by the Ccr4‐Not nuclease complex leads to reduced translational efficiency and RNA degradation.
Blessing Airhihen +4 more
doaj +1 more source
Abstract Gastric signet ring cell carcinoma (GSRCC) is a special type of gastric cancer common in young women. Diffuse gastric cancer (DGC) begins with intramucosal lesions comprising differentiated GSRCC cells. Genetically, GSRCC and DGC are clonally identical, with their morphology influenced by extracellular Wnt signaling.
Qian Wang +5 more
wiley +1 more source
HELZ directly interacts with CCR4–NOT and causes decay of bound mRNAs
The putative UPF1-like SF1 helicase HELZ directly interacts with the CCR4–NOT deadenylase complex to induce translational repression and 5′-to-3′ decay of bound mRNAs. Eukaryotic superfamily (SF) 1 helicases have been implicated in various aspects of RNA
Aoife Hanet +10 more
doaj +1 more source
Abstract Mitochondria import the majority of their proteins from the cytosol, creating a fundamental challenge: precursor proteins must be synthesized, maintained in an import‐competent state, and delivered to mitochondrial translocases without premature folding or aggregation. While mitochondrial protein import has been considered a post‐translational
Nikita A. Kvasov, Yury S. Bykov
wiley +1 more source
Interaction of antiproliferative protein Tob with the CCR4‐NOT deadenylase complex
Tob protein, when overexpressed, suppresses growth of NIH3T3 cells, presumably by regulating expression of various growth‐related genes. However, the molecular mechanisms underlying Tob‐mediated regulation of gene expression have been obscure. To address this issue we established stable Tob‐expressing cell lines and used a proteomics approach to ...
Takashi, Miyasaka +8 more
openaire +2 more sources

